M3D Spool Hub

M3D branded filament comes on small rolls and the filament is wound very tightly. The last 1/3 of the filament can be so tight that it has trouble feeding reliably. It is intended that by installing this hub and rewinding the last 1/3 of the roll, the filament will feed better and be less stiff.

Small holes were placed into the collar to allow you to insert one end of the filament to facilitate rewinding.